Showing 561 - 580 results of 718 for search '(( 50 ((peer decrease) OR (((a decrease) OR (nn decrease)))) ) OR ( a d decrease ))', query time: 0.22s Refine Results
  1. 561
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    Gas solubility and rheological behavior study of betaine and alanine based natural deep eutectic solvents (NADES) by Altamash T.

    Published 2018
    “…A pressure driven physisorption mechanism was observed for the studied systems. …”
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  3. 563

    The effects of attendance and high school GPA on student performance in first-year undergraduate courses by Al Hazaa, Khalifa

    Published 2021
    “…The study uses census data and records of 969 undergraduate students at Qatar University to investigate the impact of HSGPA, attendance, and socio-demographic factors on academic performance in higher education in DFW courses (grades D, F, or withdrawal). Findings indicate that increased attendance decreases the likelihood of getting DFW, and there was a strong negative relationship between high-school performance and the probability of getting DFW. …”
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  4. 564
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    Soluble ACE2 and Angiotensin II levels Modulated in Hypertensive COVID-19 Patients treated with different Antihypertension Drugs by Yalcin, Huseyin C.

    Published 2021
    “…ACE2 levels correlated positively with the length of hospital stay (r=0.3, p=0.003), while angiotensin II levels decreased with disease severity (p=0.04). Higher ACE2 levels were associated with elevated CRP and D-dimer, while higher angiotensin II levels were associated with lower levels of CRP, D-dimer, and troponin. …”
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  7. 567
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    Finite element study of functionally graded porous femoral stems incorporating body-centered cubic structure by Alkhatib, Sami E.

    Published 2019
    “…Three levels of porosities (20%, 50%, and 80%) were modeled in HGP and FGP stems. …”
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  10. 570

    Synthesis of silica supported ni and cu catalyst for carbon dioxide methanation reaction by Aheed, Ahmed

    Published 2019
    “…The activity and product selectivity and stability for methanation reaction on Ni/SiO2 and Cu/SiO2 catalysts have been evaluated using a flow reactor between 50ºC - 650ºC. The as-synthesized catalysts were characterized using XRD, SEM, TEM to understand the structural properties. …”
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  13. 573

    Fluid-Structure-Acoustic coupling analysis for external laminar and turbulent fluid flows by Tohid, Adibi

    Published 2023
    “…The results indicate that the transmission loss is 27% more at the elastic plate’s highest position. By decreasing the length of the elastic plate by 50%, the mean transmission loss is reduced by 9%. …”
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  17. 577

    Long-term performance analysis and power prediction of PV technology in the State of Qatar by Touati F.

    Published 2017
    “…Results show that due to panel dusting for eight months, the PV output power decreased by 50%. Also, owing to lower ambient temperatures, clearer sky and cleaner panels due to occasional rainfall, the PV panels show higher output power in Winter than in Summer season. …”
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  18. 578

    Development of an Air-Cooled Induction Manifold for Diesel Engines in Hot and Humid Climate by Elrentisy, Mohamed H.

    Published 2022
    “…For the emissions, there was a considerable reduction rate in NOx emissions with about 83% at 20 °C as well as a 50% reduction in hydrocarbon (HC) emissions compared with 45 °C. …”
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  19. 579

    Algal-algal bioflocculation enhances the recovery efficiency of Picochlorum sp. QUCCCM130 with low auto-settling capacity by Saadaoui, I.

    Published 2023
    “…QUCCCM31 and Tetraselmis sp. QUCCCM50 presenting a cell size of ∼2 μm, ∼5 μm, and ∼15 μm, respectively, were selected to be subjected to the harvesting optimisation experiments. …”
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  20. 580

    Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon by Awadallah, Ahmed

    Published 2017
    “…Adsorption/desorption isotherms of CO2, CH4, and N2 gases onto RF-ACX adsorbent were measured gravimetrically by a magnetic suspension microbalance at five different temperatures (20, 30, 40, 50 and 60 °C) in the pressure range of 0–1 MPa. …”
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